Improvement in windmills



S. H. S'MI TH. Windmills.

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UNITED STATES PATENT. OFFIon.

SETH H. SMITH, OF BROOKLYN, MICHIGAN, ASSIGNOR OF TWOTHIRDS HIS RIGHT TOG. H. FELT AND GEO. W. GREEN, OF SAME PLACE.

IMPROVEMENT m WINDMILLS.

Specification forming part of Letters Patent No. 199,114, dated January8, 1878; application filed August 10, 1877.

To all whom it may concern:

Be it known that I, SETH H. SMITH, of Brooklyn, in the county ofJackson, and in the State of Michigan, have invented certain new anduseful Improvements in Windmills; and do hereby declare that thefollowing is a full, clear, and exactdescription thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, making a part of this specification.

The nature of my invention consists inthe construction and arrangementof a windmill, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, 1 will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a side elevation of my improved windmill, the sail on thatside being cut oil, but the sail on the other side shown' at K. Fig. 2is a detailed view of a part thereof.

A represents the tower, with turn-table B, provided with arms 0 O, inwhich the horizontal wind-wheel shaft E has its bearings. D is the hubof the wind-wheel, secured to The hub D is proat equal distances apart,upon each of which is placed a fan, G. This fan is provided with boxesat a, through which the arm D passes.

The fans are all free to turn on the arms, so that they can be turned toany angle to produce the best result in a light wind, and are free to beturned out of the wind, as required in high wind.

Each fan G is, by a pivoted rod, 11, connected with an arm, 61,projecting radially from a head, 11, which slides on the wheelshaft E.

The head d has a projecting hub, which is surrounded by a forked arm,I,-rigidly attached to and extending downward from a rod, H, that hasits bearings in the upper ends of the arms 0 C, and is capable of movingendwise therein.

- The arm I is, at the point of connection with the shaft H, providedwith two wires or rods, 0 c, which connect with the short arms of, twohorizontal elbow-levers, J J, pivoted at their angles, one on each sideof the shaft H, to the top of the arm 0. The outer ends of these leversare provided with the regulatingvanes K K.

In the upper end of the arm 0, between the two levers J J, is pivoted alever, L, the outer end of which is provided with a movable weight, Land the inner or front end by a pivoted lever, L, connected with theupper end of the arm I.

By the connection of the fans G with the sliding head 11, as described,the fans are easily pulled out of the wind and brought to rest bypulling on a wire, h, connected to the point of connection of the twolevers L L and by their connection with the side sails or regulators, asthe wind increases in power, the fans are turned out of the wind aproper amount to give the wheel proper motion by said side sails orregulators being pushed back; and as the weight that brings the wheel orfans in the wind is the same at all points, it

will readily be seen that as the side sails or regulators are pushedback they present less surface to the wind, therefore require more windto turn the sails farther out of the wind, hence giving the wheel thesame motion in high wind as in gentle breezes. By having one side sailor regulator on each side of the mill the wheel is not thrown out of thewind, as is the case with wheels having but one side sail, but it facesthe wind, so as to stand steady in the wind at all times. The wheel doesnot have to get up any extra velocity to turn thefans out of the wind,as is the case with all wheels that govern by the velocity of the wheel.

By changing the position of the weight L on the lever L the fans willturn out with more or less wind, as required, so that the Wheel may beset to run at any speed desired.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination of the sliding head d, In testimony that I claim theforegoing I connected to the fans G, the arm I, shaft H, have hereuntoset my hand this 11th day of and two side sails or regulators, arrangedon July, 1877. opposite sides of the mill and connected to the arm I,substantially as and for the pur- S. H. SMITH. poses herein set forth.

2. The combination of the arm. I, toggle- Witnesses: levers L L, andadjustable Weight L sub- 0. B. FELT, stantially as and for the purposesherein set GEO. W. BERTRAM.

forth.

